CN201007216Y - Mining with filling hydraulic support - Google Patents
Mining with filling hydraulic support Download PDFInfo
- Publication number
- CN201007216Y CN201007216Y CNU200720034249XU CN200720034249U CN201007216Y CN 201007216 Y CN201007216 Y CN 201007216Y CN U200720034249X U CNU200720034249X U CN U200720034249XU CN 200720034249 U CN200720034249 U CN 200720034249U CN 201007216 Y CN201007216 Y CN 201007216Y
- Authority
- CN
- China
- Prior art keywords
- filling
- jack
- tail boom
- hinged
- drag conveyor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000011049 filling Methods 0.000 title claims abstract description 45
- 238000005065 mining Methods 0.000 title claims abstract description 20
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 230000001105 regulatory effect Effects 0.000 claims abstract description 4
- 239000000725 suspension Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 3
- 238000005266 casting Methods 0.000 description 8
- 239000011347 resin Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- 239000003245 coal Substances 0.000 description 6
- 239000000945 filler Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000000605 extraction Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000007790 scraping Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0481—Supports specially adapted for use in combination with the placing of filling-up materials
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a filling mining hydraulic bracket, comprising a top beam, a forward beam arranged on the front of the top beam, a column for supporting the top beam, a rear beam disposed on the rear part of the top beam, a rear beam jack connected with the rear beam, a scratch board conveyer arranged under the rear beam, a pedestal, wherein a chute of the scratch board conveyer is hanged under the rear beam by four circular chains; the hanging circular chains are connected with lifting rings on the two sides of the hanging circular chains; the chute plate is opened with a feed falling hole for discharging and filling; the lower part of the scratch board conveyer is equipped with a telescopic tamping jack which is obliquely hinged on the pedestal; and the head of the jack is provided with a shovel plate, and the middle part is equipped with a regulated jack hinged on the pedestal. The utility model can not only support the fully-mechanized mining working face, but also realize the complete filling to the goaf. The utility model can be applicable for various filling materials, and at the same time tamp the filling things. And moreover, the utility model has simple filling system, few configuration apparatuses, little investment, simple technology, easy operation, good filling effect, and wide practicability.
Description
Technical field
The utility model relates to the filling mining hydraulic support, is particularly useful for the supporting and the filling of mining work plane.
Technical background
Along with the continuous exploitation of coal resources, formed many artificial spaces underground, cause subsidence, influence house, highway and the farmland etc. on ground; Discarded object spoil in the coal is piled up on ground simultaneously, forms many hillocks, according to incompletely statistics, about 4,500,000,000 t of gangue that whole nation accumulative total over the years is stacked, larger hillock has more than 1600, about 1.5 ten thousand km of land occupation
2, and accumulating amount also increases with the speed of 1.5～2.0 hundred million t every year.A large amount of stackings of gangue cause the mining area ordinary production and have a strong impact on, environment for human survival is brought very big threat and harm, and bring a series of societies and environmental problem, mainly show: occupy large-area farmland, forest land, when getting angry, spontaneous combustion discharges a large amount of toxic and harmfuls, contaminated environment, harm humans safety.
The mine is taked various technical measures to control and is reduced subsidence both at home and abroad, administers face of land spoil.Traditional heavy technology that subtracts mainly contains part extraction system (comprising strip coating method, room-and-pillar method, tool post method etc.), goaf filling method (comprising hydraulic fill, filling-up pneumatically and the filling etc. of slipping certainly); In recent years, full pillar extraction has been tested by China, and extraction system, overlying strata separation layer grouting and inbreak spoil space slip casting consolidated fill etc. subtract heavy new technology at interval, but the rate of extraction is not high, serious waste of resources.For the improvement of spoil, exploration work has also been carried out in domestic many collieries, mainly is divided into ground and administers and the subsurface processes dual mode, and it is to utilize gangue refill to make ground that ground is administered, and builds lumberyard, warehouse, dormitory, surface plant etc. thereon; Subsurface processes is tunnel or the goaf that utilizes the downhole gangue backfill discarded.But reason such as all too high owing to cost in the past, complex structure or technology are immature can not applied always.
The utility model content
The purpose of this utility model is the problem that exists according to prior art, and the filling mining hydraulic support that integrates supporting and filling of a kind of simple in structure, small investment, solution environment pollution is provided.
Filling mining hydraulic support of the present utility model, comprise back timber, be located at the forestope of back timber front portion, the column of supporting top beam, be located at the tail boom of back timber afterbody, the tail boom jack that links to each other with tail boom, the drag conveyor that tail boom is provided with down, base, the drag conveyor chute is suspended under the tail boom by four round-link chains, hangs round-link chain and connects with the suspension ring of its both sides, have the material-dropping hole of discharging filling on the chute frid, described drag conveyor below is provided with the telescopic compacting jack that tilts to be hinged on the base, and the jack head is provided with shovel board, and the middle part is provided with the adjusting jack that is hinged on the base.
Material-dropping hole on the described drag conveyor chute frid is evenly arranged to upper end along drag conveyor from lower end; Material-dropping hole on the described drag conveyor chute frid has the open and close in blanking controllable hole and plate and the slideway of regulating the material-dropping hole size; Described tail boom jack and compacting jack all are hinged with the hinged otic placode of base.
Filling mining hydraulic support of the present utility model, not only can carry out supporting, can also realize complete filling, applicable to multiple filler to the goaf to fully-mechanized mining working, as spoil, flyash, river sand, loess or mixture etc., and simultaneously charges are tamped.Can finish spoil in the coal mining process does not simultaneously go out well and directly is filled to the goaf, reduce the spoil freight, effectively the occupation of land and the problem of environmental pollution of the accumulation of control ground hillock are controlled surface deformable, are improved the rate of extraction, reduce the influence of surface subsidence to surface structures and highway etc.Its filling system is simple, and configuration device is few, small investment, and technology is simple, operation easily, filling effect is good, has practicality widely in this technical field.
Description of drawings
Fig. 1 is the structure principle chart of the utility model filling hydraulic support.
Fig. 2 is the utility model filling hydraulic support foundation structural representation.
Among the figure: the 1-back timber, the 2-column, 3-tail boom jack, the 4-tail boom, 5-tamps jack, 6-suspension type drag conveyor, 7-shovel board, 8-casting resin, 9-material-dropping hole, 10-round-link chain, backplate behind the 11-support, 12-regulates jack, 13-base, the anterior drag conveyor of 14-, 15-forestope.
The specific embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
Fig. 1, shown in Figure 2, the filling mining hydraulic support is mainly by forestope 15, back timber 1, column 2, base 13, tail boom 4, tail boom jack 3, the drag conveyor 6 that hangs under the tail boom, compacting jack 5, regulate jack 12 and shovel board 7 formations, the drag conveyor chute is suspended under the tail boom 4 by four round-link chains 10, hanging round-link chain connects with the suspension ring of its both sides, have the material-dropping hole 9 of discharging filling on the chute frid of drag conveyor 6, material-dropping hole 9 evenly distributes from upper end to lower end along back suspended flight conveyor 6, spacing is comprehensively determined by the natural repose angle of packed height and casting resin, the bottom surface of material-dropping hole 9 is inserted with the plate of regulating this hole openings of sizes, the outside of chute ledge is provided with the socket that inserts plate, be welded with the slideway of plate on the frid bottom surface, there are end plate and handle thereof in the outside of plate.The end plate of plate should lean on work plane one side, so that regulate material-dropping hole.Compacting jack 5 is two, is hinged on the otic placode of base 13, and it can promote shovel board 7 and compress casting resin 8, regulates jack 12 and is hinged on the base 13, and it is used to regulate the height up and down of shovel board 7, can make casting resin connect the top at the support rear portion, thereby not interspace.Base 13 rear ends are provided with support backplate 11, and backplate plays backgauge, shielding effect; Tail boom jack 3 is two, is symmetrical arranged, and their end and tail boom 4 are hinged, and the hinged otic placode on the other end and the base 13 is hinged, to increase the supporting intensity and the stability of support.
When the filling hydraulic support after fully-mechanized mining working is arranged, the chute that hangs under each filling hydraulic support tail boom order successively connects, and is connected into a whole back suspension type flexible flightconveyor with the slide tail that is arranged in the upper and lower termination of fully-mechanized mining working, the head that slips.The length of every joint chute should be suitable for mutually with the width of filling hydraulic support, and adopts the light-duty chute of sipes group as far as possible, is beneficial to shorten loading time.
Inequipotential in the same way two drag conveyors of the forward and backward outfit bilateral of filling hydraulic support, promptly anterior back production two are made the work plane drag conveyor 14 of face and the back suspended flight conveyor 6 that is positioned at the goaf at rear portion.The filling hydraulic support will reach the requirement of bashing simultaneously except satisfying the requirement of supporting roof, fully mechanized coal face production.Drag conveyor 6 chutes of filling hydraulic support rear suspension, with the slide tail of the upper and lower termination of fully mechanized coal face, the head that slips, forms whole back suspended flight conveyor 6 after, realization haul bashing, and be used with the filling support.Casting resin falls by the material-dropping hole of back suspended flight conveyor 6 chute frids, and the size of material-dropping hole is that angle of fall, packed height, the conveying capacity according to casting resin determined or adjusting; The effect of upper scraping plate is to pass casting resin, and the effect of lower scraping plate is to push away the flat filler 8 that is dropped to gob floor by material-dropping hole; Back suspended flight conveyor 6 is realized universal adjustable suspension by flexible suspention round-link chain 10; Back suspended flight conveyor 6 can be realized flexible transportation with moving the frame reach, and moving frame does not influence the transportation filler, needn't need straightening like that by image-tape formula conveyer; Back suspended flight conveyor 6 is to carry out under the shielding of filling support tail boom 4, can guarantee the safety of stowage unit; Carry out in the time of can adopting the reach support to reach service clearance during maintenance of equipment simultaneously, the personnel that need not in the stowing operation enter the filling area.
The filling order from bottom to top, when following pack hole 9 blankings behind certain altitude, promptly close next hole and open a filling material-dropping hole again, start compacting jack 5 immediately and promote shovel board 7, the filler that has fallen is compressed compacting, several cycles is full of compacting until the goaf so repeatedly; Regulate jack 11 and be used to regulate the angle of tamping jack 5 and shovel board 7, can make casting resin connect the top, thereby realize complete filling at the support rear portion.
Fully-mechanized mining working production system, filling system combine together, and back production, filling are carried out simultaneously.Filler is transported to the fully-mechanized mining working upper end through last lane conveyer, by back suspended flight conveyor 6 filling is carried out in the goaf that material is transported to fully mechanized coal face again.Last lane is except the transportation filler, still as rail transport, auxiliary haul; Last lane spoil conveyer can adopt ribbon conveyer, also can adopt drag conveyor.When adopting the ribbon conveyer transportation, use the extension type conveyor, the conveyor head places the lane away from fully-mechanized mining working one end.When adopting drag conveyor, the scraper plate machine head places the fully-mechanized mining working upper end.The transportation lane is done in following lane, arranges crossheading extensible belt conveyor and stage loader etc.
Claims (4)
1. filling mining hydraulic support, comprise back timber (1), be located at the anterior forestope (15) of back timber (1), the column (2) of supporting top beam (1), be located at the tail boom (4) of back timber (1) afterbody, the tail boom jack (3) that links to each other with tail boom (4), the drag conveyor (6) that tail boom (4) is provided with down, base (13), the drag conveyor chute is suspended under the tail boom (4) by four round-link chains (10), hanging round-link chain connects with the suspension ring of its both sides, have the material-dropping hole (9) of discharging filling on the chute frid, it is characterized in that: described drag conveyor (6) below is provided with the telescopic compacting jack (5) that tilts to be hinged on the base (13), and jack (5) head is provided with shovel board (7), and the middle part is provided with the adjusting jack (12) that is hinged on the base (13).
2. filling hydraulic support according to claim 1 is characterized in that: the material-dropping hole (9) on described drag conveyor (6) the chute frid is evenly arranged from lower end to upper end along drag conveyor (6).
3. filling hydraulic support according to claim 1 and 2 is characterized in that: the material-dropping hole (9) on described drag conveyor (6) the chute frid has the open and close in blanking controllable hole and plate and the slideway of regulating the material-dropping hole size.
4. filling hydraulic support according to claim 1 is characterized in that: described tail boom jack (3) and compacting jack (5) all are hinged with the hinged otic placode of base (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720034249XU CN201007216Y (en) | 2007-02-06 | 2007-02-06 | Mining with filling hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720034249XU CN201007216Y (en) | 2007-02-06 | 2007-02-06 | Mining with filling hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201007216Y true CN201007216Y (en) | 2008-01-16 |
Family
ID=39003163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720034249XU Expired - Fee Related CN201007216Y (en) | 2007-02-06 | 2007-02-06 | Mining with filling hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201007216Y (en) |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010066180A1 (en) * | 2008-12-09 | 2010-06-17 | 郑州四维机电设备制造有限公司 | Filling and supporting hudraulic support with tamping mechanism |
| CN101818651A (en) * | 2010-04-27 | 2010-09-01 | 铁煤多种经营天成机电设备总厂 | Gangue filling device for goaf |
| CN101985887A (en) * | 2010-09-14 | 2011-03-16 | 中国矿业大学 | End supporting, filling and transshipping system of coal face |
| CN101586460B (en) * | 2009-06-02 | 2011-03-30 | 中国矿业大学 | Coal mining solid filling method |
| CN102020979A (en) * | 2009-09-15 | 2011-04-20 | 河北金牛能源股份有限公司 | Bonding filling material and method for carrying out downhole filling using the same |
| CN102037214A (en) * | 2008-06-20 | 2011-04-27 | 布西鲁斯欧洲有限公司 | Shield support assembly for underground mining and supporting surface element therefor |
| CN102094664A (en) * | 2011-01-27 | 2011-06-15 | 中国矿业大学 | Hydraulic bracket for end of comprehensive mechanized filling coal face |
| CN102168580A (en) * | 2010-02-25 | 2011-08-31 | 郑州四维机电设备制造有限公司 | Gangue tamping mechanism used for hydraulic support |
| CN102251789A (en) * | 2011-08-04 | 2011-11-23 | 中平能化集团机械制造有限公司 | Integrated self-shift hydraulic support for placing top coal in steeply inclined roadway |
| CN101725365B (en) * | 2009-12-04 | 2011-12-07 | 中国矿业大学 | Hexastyle supporting type coal mining and filling hydraulic bracket |
| CN102444415A (en) * | 2010-10-14 | 2012-05-09 | 郑州四维机电设备制造有限公司 | Tip bracket for solid filling |
| CN102562149A (en) * | 2011-12-31 | 2012-07-11 | 山东科技大学 | Automatic bag-overturning filling method in worked-out area |
| CN102913279A (en) * | 2011-08-05 | 2013-02-06 | 郑州四维机电设备制造有限公司 | Gangue clamping-proof structure for gangue filling tamping mechanism |
| CN103063513A (en) * | 2011-10-18 | 2013-04-24 | 徐州师范大学 | Testing device for testing lateral tamping effect of fragmented rock body |
| CN103233755A (en) * | 2013-04-15 | 2013-08-07 | 山西平阳重工机械有限责任公司 | Six-prop supporting split base type middle filling support |
| CN105065047A (en) * | 2015-07-27 | 2015-11-18 | 安徽理工大学 | High-water-content composite waste rock filling hydraulic support frame |
| CN105863688A (en) * | 2016-06-14 | 2016-08-17 | 中国矿业大学 | Method for evaluating filling characteristics of filling coal mining hydraulic supports |
| CN107165670A (en) * | 2017-07-14 | 2017-09-15 | 天地科技股份有限公司 | A kind of double flexible reinforcement mechanism devices of the unpowered follow-up type in middle part |
| CN107882590A (en) * | 2017-11-06 | 2018-04-06 | 缪协兴 | A kind of concave-convex curved surface fills support reinforcement mechanism |
| CN109944624A (en) * | 2019-05-05 | 2019-06-28 | 陕西蓝山重工科技有限公司 | Coal mine solid waste fills hydraulic support |
| CN110985117A (en) * | 2019-11-20 | 2020-04-10 | 淮南创大实业有限责任公司 | Waste filling tamping device |
| CN113756847A (en) * | 2021-08-24 | 2021-12-07 | 中国矿业大学(北京) | Vertical rammed solid filling hydraulic support and use method thereof |
-
2007
- 2007-02-06 CN CNU200720034249XU patent/CN201007216Y/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102037214B (en) * | 2008-06-20 | 2015-01-21 | 卡特彼勒全球矿场欧洲有限公司 | Shield support assembly for underground mining and supporting surface element therefor |
| CN102037214A (en) * | 2008-06-20 | 2011-04-27 | 布西鲁斯欧洲有限公司 | Shield support assembly for underground mining and supporting surface element therefor |
| WO2010066180A1 (en) * | 2008-12-09 | 2010-06-17 | 郑州四维机电设备制造有限公司 | Filling and supporting hudraulic support with tamping mechanism |
| CN101586460B (en) * | 2009-06-02 | 2011-03-30 | 中国矿业大学 | Coal mining solid filling method |
| CN102020979B (en) * | 2009-09-15 | 2013-07-24 | 河北金牛能源股份有限公司 | Bonding filling material and method for carrying out downhole filling using the same |
| CN102020979A (en) * | 2009-09-15 | 2011-04-20 | 河北金牛能源股份有限公司 | Bonding filling material and method for carrying out downhole filling using the same |
| CN101725365B (en) * | 2009-12-04 | 2011-12-07 | 中国矿业大学 | Hexastyle supporting type coal mining and filling hydraulic bracket |
| CN102168580A (en) * | 2010-02-25 | 2011-08-31 | 郑州四维机电设备制造有限公司 | Gangue tamping mechanism used for hydraulic support |
| CN101818651A (en) * | 2010-04-27 | 2010-09-01 | 铁煤多种经营天成机电设备总厂 | Gangue filling device for goaf |
| CN101985887A (en) * | 2010-09-14 | 2011-03-16 | 中国矿业大学 | End supporting, filling and transshipping system of coal face |
| CN102444415B (en) * | 2010-10-14 | 2014-07-02 | 卡特彼勒（郑州）有限公司 | Tip bracket for solid filling |
| CN102444415A (en) * | 2010-10-14 | 2012-05-09 | 郑州四维机电设备制造有限公司 | Tip bracket for solid filling |
| CN102094664A (en) * | 2011-01-27 | 2011-06-15 | 中国矿业大学 | Hydraulic bracket for end of comprehensive mechanized filling coal face |
| CN102094664B (en) * | 2011-01-27 | 2013-04-03 | 中国矿业大学 | Hydraulic bracket for end of comprehensive mechanized filling coal face |
| CN102251789A (en) * | 2011-08-04 | 2011-11-23 | 中平能化集团机械制造有限公司 | Integrated self-shift hydraulic support for placing top coal in steeply inclined roadway |
| CN102913279A (en) * | 2011-08-05 | 2013-02-06 | 郑州四维机电设备制造有限公司 | Gangue clamping-proof structure for gangue filling tamping mechanism |
| CN103063513A (en) * | 2011-10-18 | 2013-04-24 | 徐州师范大学 | Testing device for testing lateral tamping effect of fragmented rock body |
| CN103063513B (en) * | 2011-10-18 | 2017-01-11 | 江苏师范大学 | Testing device for testing lateral tamping effect of fragmented rock body |
| CN102562149B (en) * | 2011-12-31 | 2014-10-01 | 山东科技大学 | Automatic bag-overturning filling method in worked-out area |
| CN102562149A (en) * | 2011-12-31 | 2012-07-11 | 山东科技大学 | Automatic bag-overturning filling method in worked-out area |
| CN103233755A (en) * | 2013-04-15 | 2013-08-07 | 山西平阳重工机械有限责任公司 | Six-prop supporting split base type middle filling support |
| CN105065047A (en) * | 2015-07-27 | 2015-11-18 | 安徽理工大学 | High-water-content composite waste rock filling hydraulic support frame |
| CN105863688B (en) * | 2016-06-14 | 2019-04-02 | 中国矿业大学 | A kind of filling coal mining hydraulic support packing characteristics evaluation method |
| CN105863688A (en) * | 2016-06-14 | 2016-08-17 | 中国矿业大学 | Method for evaluating filling characteristics of filling coal mining hydraulic supports |
| CN107165670A (en) * | 2017-07-14 | 2017-09-15 | 天地科技股份有限公司 | A kind of double flexible reinforcement mechanism devices of the unpowered follow-up type in middle part |
| CN107882590A (en) * | 2017-11-06 | 2018-04-06 | 缪协兴 | A kind of concave-convex curved surface fills support reinforcement mechanism |
| CN109944624A (en) * | 2019-05-05 | 2019-06-28 | 陕西蓝山重工科技有限公司 | Coal mine solid waste fills hydraulic support |
| CN110985117A (en) * | 2019-11-20 | 2020-04-10 | 淮南创大实业有限责任公司 | Waste filling tamping device |
| CN110985117B (en) * | 2019-11-20 | 2021-03-09 | 淮南创大实业有限责任公司 | Waste filling tamping device |
| CN113756847A (en) * | 2021-08-24 | 2021-12-07 | 中国矿业大学(北京) | Vertical rammed solid filling hydraulic support and use method thereof |
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